Final answer:
Sadness and grief can cause shallow or short breaths due to the constricting effect they have on the lungs and the corporeal soul.
Step-by-step explanation:
Grief and sadness can often be accompanied by shallow or short breaths because the emotions have a constricting effect on the corporeal soul and therefore the lungs. When we experience sadness or grief, it can cause our breathing to become more shallow and restricted. This is a normal physiological response to these emotions.